Wall Street just closed out its best first quarter since 1998, and while most experts believe stocks will continue to head higher this year, the recent momentum will subside, and there could be a few dips along the way.

Europe is still mired in a debt crisis, but Wall Street experts are largely hopeful that the worst is over. But of course there are a number of other headwinds that could cause some turbulence as the stock market continues its climb higher.